The only hatcheries I know of that sell them is speckledhen's and MissPrissy's, but you have to pick them up though. I LOVE, LOVE, LOVE my blue girls! They are just as sweet as they are beautiful! They have such mild temperaments and have seemed to be very hardy. Mine have not started to lay as of yet, but the hatching egg they came from are HUGE! See if you can't get some hatching eggs and hatch your own.

Mine lay pretty well. They almost always skip a day in the week, each of them. Right now, mine are molting heavily. One quit laying a week ago and her feathers are coming in quickly. The other is still laying and naked, LOL. They are certainly hardy and fare very well in cold weather due to their extreme fluff and size. Suede, my rooster, is right about 12 lb and the girls are maybe 3 lb lighter. They dont eat anymore than any other birds I have, in spite of their size.
MissP is right. It takes awhile to get up a decent laying flock. My rooster and older hens arent even two years old yet and it took several batches of hatching eggs to get them and the two 10 week old pullets I have growing up-those two are from entirely different lines than my older ones.

Mine are really winter hardy and are ok layers. Not the best. But hey at least they look good Also with a breeder you have the chance to get better stock because of selective breeding for the correct traits.
Black hen
Young blue pullet Angela Stanleys line:

Hey Beekissed, I raise Blue, Black, Splash and Buffs and I'm in WV... I have some very pretty cockerals if your interested and maybe next Spring can send you some eggs...I have molting going on and the roosters aren't in the pens with the hens at the moment....

Kathy, the middle girl, the one next to the Brahma in the pics is Skye. I think Skye has a prettier face than Velvet, more feminine, but Velvet is very typey and a complete goofball-she keeps me laughing all the time.